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01229f5e1b
linux/fs/nfsd
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Avi Kivity 69bbd9c7b9 nfs: fix nfs4d readlink truncated packet 
XDR requires 4-byte alignment; nfs4d READLINK reply writes out the padding,
but truncates the packet to the padding-less size.

Fix by taking the padding into consideration when truncating the packet.

Symptoms:

	# ll /mnt/
	ls: cannot read symbolic link /mnt/test: Input/output error
	total 4
	-rw-r--r--. 1 root root  0 Jun 14 01:21 123456
	lrwxrwxrwx. 1 root root  6 Jul  2 03:33 test
	drwxr-xr-x. 1 root root  0 Jul  2 23:50 tmp
	drwxr-xr-x. 1 root root 60 Jul  2 23:44 tree

Signed-off-by: Avi Kivity <avi@cloudius-systems.com>
Fixes: 476a7b1f4b (nfsd4: don't treat readlink like a zero-copy operation)
Reviewed-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-07-02 17:37:13 -04:00
..
acl.h nfsd4: use xdr_reserve_space in attribute encoding 2014-05-28 14:52:34 -04:00
auth.c NFSD: Cleanup unused variable in nfsd_setuser() 2014-05-30 17:32:21 -04:00
auth.h nfsd: Remove nfsd_luid, nfsd_lgid, nfsd_ruid and nfsd_rgid 2013-02-13 06:15:51 -08:00
cache.h nfsd: get rid of unused function definition 2014-01-02 17:53:23 -05:00
current_stateid.h nfsd41: use current stateid by value 2012-02-15 11:20:45 -05:00
export.c NFSD: Error out when getting more than one fsloc/secinfo/uuid 2014-05-30 17:32:25 -04:00
export.h NFSD: Using type of uint32_t for ex_nflavors instead of int 2014-05-30 17:32:24 -04:00
fault_inject.c NFSD: Use simple_read_from_buffer for coping data to userspace 2014-05-08 14:59:52 -04:00
idmap.h nfsd4: use xdr_reserve_space in attribute encoding 2014-05-28 14:52:34 -04:00
Kconfig nfsd: fix Kconfig syntax 2013-10-26 15:37:26 -04:00
lockd.c
Makefile NFSD: Added fault injection 2011-11-07 21:10:47 -05:00
netns.h NFSD: Don't start lockd when only NFSv4 is running 2014-01-03 18:18:50 -05:00
nfs2acl.c nfsd: Remove assignments inside conditions 2014-05-22 15:52:23 -04:00
nfs3acl.c nfsd: Remove assignments inside conditions 2014-05-22 15:52:23 -04:00
nfs3proc.c switch vfs_getattr() to struct path 2013-02-26 02:46:08 -05:00
nfs3xdr.c nfsd: Remove assignments inside conditions 2014-05-22 15:52:23 -04:00
nfs4acl.c nfsd4: use xdr_reserve_space in attribute encoding 2014-05-28 14:52:34 -04:00
nfs4callback.c nfsd: set timeparms.to_maxval in setup_callback_client 2014-04-18 14:34:31 +02:00
nfs4idmap.c nfsd4: use xdr_reserve_space in attribute encoding 2014-05-28 14:52:34 -04:00
nfs4proc.c nfsd: fix rare symlink decoding bug 2014-06-27 16:10:46 -04:00
nfs4recover.c nfsd: switch to %p[dD] 2013-10-24 23:34:51 -04:00
nfs4state.c NFSD: Don't hand out delegations for 30 seconds after recalling them. 2014-06-17 16:42:47 -04:00
nfs4xdr.c nfs: fix nfs4d readlink truncated packet 2014-07-02 17:37:13 -04:00
nfscache.c nfsd: don't halt scanning the DRC LRU list when there's an RC_INPROG entry 2014-06-06 19:22:49 -04:00
nfsctl.c NFSD: Get rid of empty function nfs4_state_init 2014-05-08 14:59:52 -04:00
nfsd.h NFSD: Get rid of empty function nfs4_state_init 2014-05-08 14:59:52 -04:00
nfsfh.c SUNRPC/NFSD: Remove using of dprintk with KERN_WARNING 2014-05-30 20:25:28 -04:00
nfsfh.h nfsd: remove <linux/nfsd/nfsfh.h> 2014-05-06 17:54:53 -04:00
nfsproc.c switch vfs_getattr() to struct path 2013-02-26 02:46:08 -05:00
nfssvc.c nfsd: Only set PF_LESS_THROTTLE when really needed. 2014-05-22 15:59:19 -04:00
nfsxdr.c nfsd: Remove assignments inside conditions 2014-05-22 15:52:23 -04:00
state.h nfsd4: allow larger 4.1 session drc slots 2014-05-23 09:03:41 -04:00
stats.c nfsd: move <linux/nfsd/stats.h> to fs/nfsd 2014-05-06 17:54:55 -04:00
stats.h nfsd: move <linux/nfsd/stats.h> to fs/nfsd 2014-05-06 17:54:55 -04:00
vfs.c nfsd: remove unused function nfsd_read_file 2014-05-30 17:32:27 -04:00
vfs.h nfsd: remove unused function nfsd_read_file 2014-05-30 17:32:27 -04:00
xdr3.h nfsd: fix encode_entryplus_baggage stack usage 2014-01-23 13:50:27 -05:00
xdr4.h nfsd4: allow large readdirs 2014-05-30 17:32:03 -04:00
xdr4cb.h nfsd4: check backchannel attributes on create_session 2013-04-09 16:53:56 -04:00
xdr.h nfsd: handle vfs_getattr errors in acl protocol 2013-02-26 02:46:09 -05:00